16171359918 has 32 divisors (see below), whose sum is σ = 36986264064. Its totient is φ = 4617494112.

The previous prime is 16171359899. The next prime is 16171359931. The reversal of 16171359918 is 81995317161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52305 + ... + 187292.

It is an arithmetic number, because the mean of its divisors is an integer number (1155820752).

Almost surely, 2^16171359918 is an apocalyptic number.

16171359918 is an abundant number, since it is smaller than the sum of its proper divisors (20814904146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16171359918 is a wasteful number, since it uses less digits than its factorization.

16171359918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241216.

The product of its digits is 408240, while the sum is 51.

The spelling of 16171359918 in words is "sixteen billion, one hundred seventy-one million, three hundred fifty-nine thousand, nine hundred eighteen".